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The star also revealed she has enjoyed filming the latest scenes for her character, who is pregnant in the new series.

Speaking to Access Hollywood at Comic-Con, Caitriona said: "It's going really good. It's a very visually – a very different show this year. I mean, obviously Claire and Jamie are sort of centre and all that still.

"But yeah, it's really beautiful. The sets are fantastic, so rich and so lush and the costumes are incredible. But you know what I've been really enjoying is that Claire's pregnant and playing all of that – what that brings up in her and about impending motherhood and everything. It's just been a really, really fun, great material to work with."

She added: "It changes everything. When you kind of believe that something is impossible and then that change, it brings up a lot of stuff about her own family and her past.

"She lost her parents when she was five, so she's never really had that kind of mother figure there to guide her, and I think it brings up a lot of that stuff for her, but it's something that brings Jamie and Claire really together, and it's a beautiful part of the story."